package com.curtain.sell.controller;


import com.curtain.sell.enums.ResultEnum;
import com.curtain.sell.exception.SellException;

import lombok.extern.slf4j.Slf4j;
import me.chanjar.weixin.common.api.WxConsts;
import me.chanjar.weixin.common.exception.WxErrorException;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.bean.result.WxMpOAuth2AccessToken;
import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;


import java.net.URLEncoder;

@Controller
@RequestMapping("/wechat")
@Slf4j
public class WeChatController {

    @Autowired
    WxMpService wxMpService;

    @GetMapping(value = "/authorize")
    public String authorize(@RequestParam("returnUrl") String returnUrl) {
        //1.配置
        //2.调用方法
        String url = "http://127.0.0.1:8080/sell/wechat/userInfo";
        String redirectUrl = wxMpService.oauth2buildAuthorizationUrl(url, WxConsts.OAUTH2_SCOPE_BASE, URLEncoder.encode(returnUrl));
        //TODO 微信授权失败   待核查  404
        return "redirect" + redirectUrl;
    }

    @GetMapping(value = "/userInfo")
    public String userInfo(@RequestParam("code") String code, @RequestParam("state") String returnUrl){

        WxMpOAuth2AccessToken wxMpOAuth2AccessToken;
        try {
           wxMpOAuth2AccessToken = wxMpService.oauth2getAccessToken(code);
        }catch (WxErrorException e){
            log.error("【微信网页授权】{}",e);
            throw new SellException(ResultEnum.WX_MP_ERROR, e.getError().getErrorMsg());
        }

        String openId = wxMpOAuth2AccessToken.getOpenId();
        return "redirect:"+returnUrl+"?openid="+openId;
    }
}
